[LLVMdev] Missing symbols in pass stack trace

[Justin Holewinski]

On Jun 24, 2011, at 10:14 AM, Carlo Alberto Ferraris wrote:

> I'm working on a pass (both LLVM and the pass have been compiled in debug+asserts mode) but when the pass crashes in the stack trace printed by opt the names of the functions inside my pass don't appear (see frames 14-16). How can I have them displayed?
>> cafxx at ubuntu:~/Projects/llvm2/Debug+Asserts/bin$ clear && ./opt -load=CGF.so -cgf -debug test.S 
>> [...]
>> While deleting: i32 %
>> Use still stuck around after Def is destroyed:  ret i32 <badref>
>> opt: Value.cpp:76: virtual llvm::Value::~Value(): Assertion `use_empty() && "Uses remain when a value is destroyed!"' failed.
>> 0  opt             0x0000000000d75265
>> 1  opt             0x0000000000d75061
>> 2  libpthread.so.0 0x00007f640c60bc60
>> 3  libc.so.6       0x00007f640b8f6d05 gsignal + 53
>> 4  libc.so.6       0x00007f640b8faab6 abort + 390
>> 5  libc.so.6       0x00007f640b8ef7c5 __assert_fail + 245
>> 6  opt             0x0000000000d1b287 llvm::Value::~Value() + 393
>> 7  opt             0x0000000000c18b67 llvm::User::~User() + 99
>> 8  opt             0x0000000000cc9ee2 llvm::Instruction::~Instruction() + 114
>> 9  opt             0x0000000000ccbf68 llvm::CallInst::~CallInst() + 58
>> 10 opt             0x0000000000ccbf9a llvm::CallInst::~CallInst() + 24
>> 11 opt             0x00000000008db456 llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*) + 42
>> 12 opt             0x00000000008d9ffd llvm::iplist<llvm::Instruction, llvm::ilist_traits<llvm::Instruction> >::erase(llvm::ilist_iterator<llvm::Instruction>) + 43
>> 13 opt             0x0000000000cca004 llvm::Instruction::eraseFromParent() + 66
>> 14 CGF.so          0x00007f640b6a0042
>> 15 CGF.so          0x00007f640b69f7c3
>> 16 CGF.so          0x00007f640b6a24fd
>> 17 opt             0x0000000000cf75f2 llvm::MPPassManager::runOnModule(llvm::Module&) + 456
>> 18 opt             0x0000000000cf7ae7 llvm::PassManagerImpl::run(llvm::Module&) + 125
>> 19 opt             0x0000000000cf7ef5 llvm::PassManager::run(llvm::Module&) + 39
>> 20 opt             0x00000000008b33e3 main + 4434
>> 21 libc.so.6       0x00007f640b8e1eff __libc_start_main + 255
>> 22 opt             0x00000000008a3ec9
>> Stack dump:
>> 0.    Program arguments: ./opt -load=CGF.so -cgf -debug test.S 
>> 1.    Running pass 'CGF' on module 'test.S'.
> 

Looks like your shared library is not being compiled with symbols.  Did you verify that your sources are compiled with -g?

> 
> -- 
> Carlo Alberto Ferraris <cafxx at strayorange.com>
> website/blog - +39 333 7643 235
> <cafxx.vcf>_______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Thanks,

Justin Holewinski

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110624/75baa885/attachment.html>